Food. 307 



Now, this idea is so for from bein^ cotrefct, that the very contrary 

 is actually the case, as all Horses whidl get aloetic physic, are, uni- 

 formly, more or less sick during its operation, even if the Soccotorine 

 or Cape aloes be employed, and if the Bai'badoes be used, the nausea is 

 eommonly excessive and long-continued, as has been already pointed 

 out in the chapter on Purgatives. And further, that decided disin- 

 clination for food, which all -benevolent nature induces during the 

 course of most acute diseases, is usually attended with considerable 

 and evident nausea. The analogical reasoning employed upon 

 this subject, has been of the following kind ,* viz. half a grain of Tar- 

 tar Emetic, will excite nausea ?h a matt, dnd therefore, (arguing 

 on the principle of biilk for bulk) it was presumed that two or IhRKv 

 grains would excite nausea in a Horse. Yet, it has been proved thai a 

 thousand grains of this preparation of antimony, will scarcely pro-- 

 duce this effect on the stomach of a Horse, although one would be 

 safe in asserting that this quantity would be sufficient to kill fifty men. 

 Nevertheless, most violent nausea may be excited in the Horse, at- 

 tended with strong attempts to vomit, by several vegetable productions, 

 such as henbane and wolfsbane, given in no very large quantities. 

 I have glanced at these facts, merely by way of shewing the deceptive 

 nature of analogy, and of proving how cautious we ought to be in 

 drawing inductions, grounded on this principle only. After these pre- 

 liminary remarks, I proceed to the consideration of the different arli- 

 clerof Horse diet. 



It is a well known fact that a Horse will not only live, but fatten 

 upon grass, yet in this state, which we are too apt to call the true state 

 of nature, he becomes, comparatively, unserviceable to man. In 

 order, therefore, to produce the full amount of his services, both as to 



